<template>
  <div id="app" class="todo-container">
    <div class="todo-wrap">
      <TodoHeader></TodoHeader>
      <TodoList :todoList="todoList"></TodoList>
      <TodoBottom :todoList="todoList"></TodoBottom>
    </div>
  </div>
</template>

<script>
import TodoHeader from "./components/TodoHeader.vue";
import TodoList from "./components/TodoList.vue";
import TodoBottom from "./components/TodoBottom.vue";

export default {
  name: "App",
  components: {
    TodoHeader,
    TodoList,
    TodoBottom,
  },
  data() {
    return {
      todoList: JSON.parse(localStorage.getItem("todoList")) || [],
    };
  },
  methods: {
    addTodoList(obj) {
      this.todoList.unshift(obj);
    },
    changeChecked(id, does) {
      this.todoList.forEach((item) => {
        if (item.id == id) {
          item.does = does;
        }
      });
    },
    clearAllCompleted() {
      console.log("清除");
      this.todoList = this.todoList.filter((item) => {
        return !item.does;
      });
    },
    handDelete(id) {
      this.todoList = this.todoList.filter((item) => {
        return item.id != id;
      });
    },
    chageAll() {
      this.todoList.forEach((item) => {
        item.does = !item.does;
      });
    },
  },
  watch: {
    todoList: function (newValue) {
      console.log("newValue", newValue);
      localStorage.setItem("todoList", JSON.stringify(newValue));
    },
  },
  mounted() {
    //footer
    this.$bus.$on("clearAllCompleted", this.clearAllCompleted);
    this.$bus.$on("chageAll", this.chageAll);
    //list
    this.$bus.$on("addTodoList", this.addTodoList);
    //item
    this.$bus.$on("changeChecked", this.changeChecked);
    this.$bus.$on("handDelete", this.handDelete);
  },
  beforeDestroy() {
    this.$off([
      "clearAllCompleted",
      "chageAll",
      "addTodoList",
      "changeChecked",
      "handDelete",
    ]);
  },
};
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
